Disk-form bottle closure



May 27, 1930. "F EIL; JR 1,760,279

DISK FORM BOTTLE CLOSURE Filed Dec. 9, 1927 Y I 8140041 91, a/w/C 6 Patented May 27, 1930 UNITED STATEF tartar, FICE FRANK ONEILL, JR., OF NEW YORK, N. Y.

DISK-FORM BOTTLE CLOSURE Application filed December 9, 1927. Serial No. 238,863.

The object of this invention is to provide a sanitary covering, made of paper or card board, for milk bottles and other containers, with a pull tab of high tensile strength, so that it will resist being torn off, and a special object is to render needless separate, reinbottom surfaces are quite tough. Briefly described, my invention involves making incisions or cuts in a disk of such'paper from opposite sides to form the outlines of oppositely extending tongues, peeling the outlined tongue on a plane to which the cuts or' incisions extend, and then transposing the tongues thus completed so that they, respectively, lie in the planes originally occupied by one another.

My invention consists in whatever is described by or is included within the terms or scope of the appended claims.

In the drawings: I illustrate several embodiments of my invention without intending to restrict myself to either or to both thereof, although as will appear later, certain features of these embodiments are specifically claimed. In such drawings:

Fig. 1 is a plan view of a disk blank'of paper showing the incisions on one side 1n full lines and those on the opposite side in dotted lines; Y

' Fig. 2 is a section on the line 2.2 of Fig. 1

illustrating the procedure of peeling and transposing the tongues;

Fig; 3 is a top plan view of the complete pull tab disk ready for application to a bottle or container; i v

Fig. 4 is a section on the line 4-4: of Fig. 3;

Fig. 5 is a top plan view corresponding to Fig. 1 of another embodiment of my invention Figs. 6 and 7 are, respectively, sections on the line 6-6 of Fig. 5 showing the procedure pursued in peeling the tongues and transpos ing them and finishing the free edge of the tongue which constitutes the pull tab in the finished disk;

J Fig. 8 is atop plan view of the complete disk Fig. 9 is a sectlon on the line 9-9 of Fig. 8. 0

Referring first to the embodiment of the invention shown in Figs. 1 to at, I make in a card board or paper disk, 10, having the layer characteristics before mentioned, incisions from one surface'which provide the outline of a tongue, 11, which extends radially outward from the diskcenter, its twosides and its outer end beingdefine'd by cuts, '12 and 13,

and extending obliquely outward from the corner formed by one side and the end is a cut, 14, andlalso extending from such corner obliquely outward is a cut, 15. From each cut, 12, extends laterally several parallel cuts. All of the cuts thus far mentioned extend only partially into the disk and preferably to a distance less tllan one-half the thickness of the disk. From the opposing side of the disk as indicated on dotted lines. in Fig. 1, in cisions are made that outline 'a tongue, 16, that extends radially inward from a' point near the termination of the incisions, 14, with the inner, free end of the tongue thusformed, towards the center of the disk and so that, as

clearly shown in Figs. 1 and 2, tongues outlined by the incisions lie one above the other for something less than the length of the tongue. The cuts or incisions to form the tongue, 16, extend preferably through more than one-half the thickness of the disk, for

it is that tongue which is to constitute the pull "tab, and it is desirable to have it as thick as possible.

Referring to Fig. 2'it will be seen that first the tongue, 11, is peeled at a depth in the plane to which the cuts outlining that tongue are formed, and such tongue swung upwardly sufliciently far to allow the pull tab tongue, 16, to be similarly peeled and turned upward on its unsevered connection with the disk, so as to leave room or clearance for the tongue, 11,

to be pressed downward to the opposite side of the disk through the holein the disk thus provided, and then the tab form'ing tongue,

.16, is bent downward upon the tongue, 11, so

that their positions are now transposed as clearly illustrated in Figs. 3 and 4 with the pull tab tongue, 16, uppermost when the disk is applied to the bottle. The various laterally extending incisions are for the purpose of permitting the pull tab tongue, 16, to be moved readily upward from its original position, because its width is preferably greater than the width of the tongue, 11. Adjacent the free end of the pull tab tongue is a recess or depression, 18, which permits the 2 ready thrusting of the finger nail under the pull tab tongue when it is desired tolift it to provide the handle to pull or remove the cap from: the bottle or container. Preferably a score or line, 19, of weakness is provided on the" upper surface of what is the finished capto define or locate the hinging point of the pull tab, 16,.andto facilitate its upward movement, both in the forming operation and in use, but no scoring is done on the'oppos'ite side because that would weaken or impair undesirably the tensile strength of the connection of the pull tab, 16', with the body of the disk.

Referring to the embodiment of my invention shown in Figs. 5 to 9, it will be seen that from what is the upper side of the cap when in use, as in the case of Fig. 1, incisions or cuts are made to outline a tongue, 110, correspondi-ng to the tongue, 11, of Fig. 1, two tongues, 20, one at each side thereof, all three of these tongues having at their-unsevered ends a score, 21, or a line of weakness on which they can be readily turned upward; there are cuts to form opposing similar laterally extending tongues, 22, these having each a score, 23', at its outer unsevered' end, and there are cuts which provide side by side tongues, a middle one, 24, and a narrower one, 25, at each side thereof, these three tongues 24 and 25 having a score, 26, at their outer ends. The tongues, 24 and 25 are on the sides of the tongues, 22, opposite the tongues, 11 0- and 20.

On the under side of the diska tongue, 160,

is outlined by side and cross incisions, such tongue corresponding with the tongue, 16, of Figs. 1 to 4, and the incisions being to a greater depth than in the case of the tongues on the opposite side, because the tongue, 160,

is to provide the pull tab. By reference to Fig.6, it will be seen that the modus operandi or procedure to transpose the tongues, 110 and 160, is similar to what is shown in: Figs. 1. to 4,. the various laterally arranged tongues, 20, 22, 24 and 25,. being provided to facilitate the movements of the two tongues that are transposed- The incisions or cuts which form the tongues, 110 and 20, aredeeper than those which. form the tongues, 22,; so that as clearly illustrated in Figs; 6,7 and 9 a. depression, 27 isprovided in the upper side of the pull tab form tongue, 160 at its-free end and the reduced thickness at such freeend is folded or doubled over itself as clearly shown in F igs. 7 and 9-, so that a smooth unbroken .ness than the other.-

rounded surface is presented for engagement of the finger nail to lift such pull tab tongue, 160, for removing the cap from the bottle or container. Thus fraying or splitting which might result from a raw edge as in the construction shown in Figs. 1 to 4 cannot take place. Adhesive or paste is applied to cause the folded or doubled over part to adhere to the bottom of the depression. Such folding over of the outer end of the pull tab 7 also provides an ample space or pocket, 28, for thrusting the finger nail into engagement with the tab, and on the under side opposite the pocket, 28,.a pocket, 29, results which allows such resilient movement of the tongue, 110,. that is of advantagesin engaging the finger nail with the free end of the pull tab tongue. Figs. 8 and ,9 illustrate thefinis'hed cap ready for use. I

Itis an important characteristic of the cap, as shown in both- Figs. 1 to 4 and 5 to 9,-that all the tongues and tabs in the finished caplie within the space between the planes of the opposite sides of the'disk, so there are no pro j'ections and thatis of especial importance because to be commercial automatic capping machinery must be employed toapply the caps to bottles and containers, and should there be any projections from the flat or plane sides of the disk, it would result in choking the feedmechanism. V

Preferably the overlapping surfaces of the two tabs when transposed are pastedtogzether fora portion of their area at least and that operation may be; performed by the forming machine which has a plunger to move the tongues for transposition and during such movement pasteis applied by'a Vice combined with the plunger.

Preferably the thickness of the tongue which formsthe pull tab is two-thirds the thickness of the disk.

What I claim is: v o

1 A container closure of sheet material having on opposite sides oppositely projecting overlapping tongues that provide handle means for lifting the closure from the container, said tongues being integral parts of the samepiece of sheet material.

2. A container closure of sheet material having on opposite sides oppositely project ing overlapping tongues that provide handle means for lifting the closure from the con tainer, said tongues being integral parts of the same piece of sheet material, each tongue being connected with the closure on the side opposite that next which its free end lies.

3. A container closure of sheet material having on opposite sides oppositely projectpasting deing. overlapping tongues that provide handle means for lifting the closure fromthe container, said tongues being integral parts of the same piece of sheet material, one of: said ton gnes being of substantially greater thick- 4. A container closure of sheet material having on opposite sides oppositely projecting overlapping tongues that provide handle means for lifting the closure from the container, said tongues being integral parts of the same piece of sheet material, and both tongues being defined by cuts which extend from opposite sides of the closure.

5. A container closure of sheet material having on opposite sides oppositely projecting overlapping tongues that provide handle means for lifting the closure from the container, said tongues being integral parts of the same piece of sheet material, and both tongues being defined by cuts which extend fromopposite sides of the closure, the sheet material being composed of layers and the tongues being peeled therefrom.

6. A container closure of sheet material having on opposite sides oppositely projecting overlapping tongues that provide handle means for lifting the closure from the container, said tongues being integral parts of the same piece of sheet material, the free end of one of said tongues being folded over to provide an unbroken exposed edge for en gagement by the finger nail.

7. A container closure of sheet material having on opposite sides oppositely projecting overlapping tongues that provide handle means for lifting the closure from the container, said tongues being integral parts of the same piece of sheet material, the free end of one of said tongues being folded over to provide an unbroken exposed edge for engagement by the finger nail, the overlapped portions being secured in position.

8. A container closure of sheet material having on opposite sides oppositely projecting overlapping tongues that provide handle means for lifting the closure from the container, said tongues being integral parts of the same piece of sheet material, opposing portions of the tongues being joined together.

In testimony whereof I hereunto aflix my signature.

FRANK ONEILL, J R. 

